Hand pump



FIG. 1 is a front perspective view of the hand pump showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a front elevation view thereof;

FIG. 6 is a rear plan view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines are for environmental purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a hand pump, as shown and described herein. 